Greater London · London and the South East
Thermal imaging roof survey in The Wrythe, Greater London
Know where you stand with the roof before you spend money on it. We carry out thermal roof surveys in The Wrythe, with photos and a clear written report.
- Possible trapped moisture under a flat roof covering
- Water that travels before it shows
- Ceilings that feel colder in places
Thermal roof surveys for homes and businesses in The Wrythe
Wet insulation under a flat roof covering holds heat for longer than dry. So a wet patch can show as a warmer or cooler area on the camera. It helps us see how far water may have spread under the covering, something you cannot usually tell from the surface. Moisture readings are then used to check what the camera suggests. If you’ve noticed thin or uneven insulation in the roof and cold areas below the roof, a survey will tell you what’s going on, whatever the roof.
London roofs sit shoulder to shoulder in terraces and blocks, which makes care around neighbours part of the job. We take care to focus on the roof we’ve been asked to look at. Mention access, height and anything unusual about the building when booking. Steep slopes, tall chimneys and rear additions are where the extra view helps most.
You can share the report with anyone who needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent.
- Place
- The Wrythe (SM5, SM6, SM1)
- Region
- Greater London
- Price
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Common roof problems in The Wrythe
Some buyers want extra detail before they commit to a purchase. The Premium Survey brings thermal imaging and a drone inspection where it applies, with a report the same day, which suits a purchase that’s moving quickly.
People normally book a survey when they’ve noticed one of these:
- Areas losing heat at the eaves and junctions
- Cold spots on ceilings under the roof
- Wet areas near outlets and upstands
- Damp that repairs haven’t cured
Anyone responsible for a site like Victor Seymour Infants' School will know that a drone or thermal camera can show a large roof in a single visit.
Before booking anyone
- Which viewpoints they use to see the roof
- Are they insured for the work?
- Whether the roof space is looked at, where there is one
- What follow-up you get after the report
How it works
There is not much for you to do on the day. Show us any stains, drips or problem areas you know about, and we’ll get on with the inspection. The survey itself takes an hour or two for a house; commercial roofs usually need 3–4 hours. From the street, a London terrace typically shows only its front slope or parapet, so a visit in The Wrythe moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Let us know who holds the keys.
- We start by discussing the roof, any signs of damp and how the weather may affect the images.
- We look at the roof from the ground, from windows and from the roof itself where it is safe.
- Thermal images are taken to show differences in surface temperature.
- Any patterns of interest are checked with moisture readings where we can reach them.
- The report sets out the images, what they suggest and what we recommend.
How to prepare
- Mention any parking restrictions on your street
- If it isn’t your property yet, arrange access through the agent
- For a flat or shared roof, check access with the building owner or managing agent
Arrange a survey
We survey roofs on weekdays and at weekends. To arrange a day that suits you, ring 07833 053749 or email us.
Related advice
Practical tips
From years of surveys, a few habits stand out as worth the effort:
- Photograph damp patches with the date
- Don’t climb onto the roof to look for leaks yourself
- Keep outlets and gutters clear to stop water sitting
- Ask us about the forecast if rain is expected
Once we’ve been, the thermal images, photos and readings go into a single report. We explain what each image may mean, alongside what we recommend. With a Premium Survey, you get the report the same day.
Check that loft insulation is laid evenly and hasn’t been pushed aside. Insulation is often moved when people work in the roof space.
Your questions about thermal roof surveys in The Wrythe
Is my home in The Wrythe listed or in a conservation area?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Are there drone restrictions around The Wrythe?
That depends on where the roof is and on the weather. Across London there are restriction zones around Heathrow, London City and London Heliport, plus restricted areas over Hyde Park, the City of London and the Isle of Dogs. Each address is checked against all of them before the drone goes up. Every flight is checked against the Drone Safety Map first, including zones around airports and prisons. A small drone can’t fly safely in strong wind or heavy rain, though the rest of the survey goes ahead either way.
Can a thermal camera see water?
No, not on its own. It shows temperature, and wet materials frequently behave differently from dry ones. That is why we check any patterns with moisture readings.
Do you test for asbestos?
No. Asbestos surveys and testing are not part of what we do. If we see materials that could contain asbestos, like cement roof sheets or soffits on buildings from before 2000, we flag them and suggest a specialist asbestos surveyor checks them before any work.
Is it the same as a RICS Level 2 or Level 3 survey?
No. This is a survey of the roof only, so it’s not a RICS Level 2 or Level 3 survey. Many buyers have both.
Will you walk on the roof?
Only where it is safe to do so. We look at everything that can be seen safely: from ground level, from windows, from inside the roof space, from the roof where it is safe and by drone where it applies. The report says if anything couldn’t be seen.
Is thermal imaging useful on pitched roofs?
On pitched roofs, the camera can point to heat loss and some damp patterns. Our report is clear about what can be read from them, and back them up with a visual inspection and moisture readings.
Different roofs, different checks
Felt and asphalt flat roofs
These coverings sit directly on the layers beneath, so temperature differences frequently show through. Any patterns are checked with moisture readings.
Single-ply and EPDM roofs
Single-ply PVC, TPO and EPDM roofs are often laid over insulation boards. If water gets under them, thermal imaging can suggest which boards are wet.
Thermal roof surveys in The Wrythe: local notes
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Where a roof is steep, tall or hard to see from the ground, drone photos and thermal images add detail. Where the drone is part of the survey, we check the Drone Safety Map for restrictions before flying.
If you look after a shop, office or commercial unit, for example near Centrale Croydon, big, flat commercial roofs are where aerial photos and thermal images help most. As a London address, The Wrythe can be tricky for parking: a visitor permit or a nearby bay makes the day easier, as a space near the door can’t be promised.
The Wrythe is about 7 miles south of Stockwell, in Greater London. We provide thermal roof surveys for householders, landlords and businesses in The Wrythe and nearby. We cover towns and villages across Greater London. For surveys nearby, see our London page.
We cover every part of SM5, SM6 and SM1 for thermal roof surveys. You’ll find streets such as Elm Road, Byne Road and Mill Lane, all of which we cover. Other places close to The Wrythe include Carshalton (1 mile south), Wallington (1 mile south-east), Rosehill (1 mile north-west), St Helier (1 mile north-west) and Benhilton (1 mile west). Larger places within reach include London (9 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (9 miles north), St Pancras (11 miles north) and Shoreditch (11 miles north).
What’s near The Wrythe
Around The Wrythe, our work takes us to homes and buildings near Carshalton Park, The Railway Tavern and Carshalton High School for Girls, among other places. The Wrythe has its own railway station: Carshalton station. A little further out are Centrale Croydon (2.7 miles east) and Honeywood Museum (0.6 miles south). Not far away are The Spinney Local Nature Reserve and Duppas Hill.
Landlords, agents and block managers in The Wrythe
With a portfolio of properties, you can book surveys for several addresses. To arrange surveys for several addresses, ring 07833 053749 or use the contact form with the addresses.
Surveys can also be booked by buyers’ agents acting for a client. Reports are emailed, so they’re easy to pass on.
Honest limits
Before booking, it’s worth knowing what a survey will not do:
- Seeing water directly, as the camera shows temperature, not moisture
- An energy rating for the building
- Readings unaffected by sun, shade or reflections
If you’re not sure which survey you need, ring 07833 053749 or use the contact form and we’ll give you a straight answer before booking. What a survey covers and does not.
What this survey covers
- Flat roofs
- Loft conversions
- Ceilings below the roof
- Commercial roofs
- Insulated roof spaces
- Pitched roof slopes